9902013 has 16 divisors (see below), whose sum is σ = 14487552. Its totient is φ = 5966000.

The previous prime is 9901999. The next prime is 9902017. The reversal of 9902013 is 3102099.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 9902013 - 2⁵ = 9901981 is a prime.

It is a super-2 number, since 2×9902013² = 196099722904338, which contains 22 as substring.

It is a Curzon number.

9902013 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9902017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5518 + ... + 7088.

It is an arithmetic number, because the mean of its divisors is an integer number (905472).

Almost surely, 2^9902013 is an apocalyptic number.

It is an amenable number.

9902013 is a deficient number, since it is larger than the sum of its proper divisors (4585539).

9902013 is a wasteful number, since it uses less digits than its factorization.

9902013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 9902013 is about 3146.7464149499. The cubic root of 9902013 is about 214.7374693578.

It can be divided in two parts, 990 and 2013, that added together give a palindrome (3003).

The spelling of 9902013 in words is "nine million, nine hundred two thousand, thirteen".